Multi-seal-strip vacuum multi-layer linkage heat sealing device

Abstract

The invention discloses a multi-seal-strip vacuum multi-layer linkage heat sealing device, and relates to the technical field of packaging heat sealing, the multi-seal-strip vacuum multi-layer linkage heat sealing device comprises a packaging mechanism and a packaging layer which comprises a plurality of layers of drawer structures arranged in parallel, the packaging layer comprises an upper clamping plate assembly and a lower clamping plate assembly, and transmission rhombic pieces are arranged at the ends of an upper execution vertical plate and a lower execution vertical plate; a fixed hinge point is arranged in the middle of the transmission rhombus piece, and the two ends of the transmission rhombus piece are rotationally connected to the upper execution vertical plate and the lower execution vertical plate through crank wheels correspondingly and drive the upper execution vertical plate and the lower execution vertical plate to move in the opposite directions. The distance between a fixed hinge point in the middle of the transmission rhombus piece and the distance between rotary connecting points at the two ends are proportional; and the lower clamping plate assembly comprises a plurality of heating sheets which are arranged in parallel. The vacuum heat sealing technology and the multi-layer linkage heat sealing technology are combined, vacuum heat sealing is achieved, the heat sealing efficiency is improved, and the heat sealing quality is improved.

Description

Technical Field

[0001] The invention relates to the technical field of packaging heat sealing, in particular to a multi-seal vacuum multi-layer linkage heat sealing device. Background Art

[0002] Packaging heat sealing technology is a packaging method widely used in many industries such as food, medicine, and cosmetics. It uses heat to bond two or more layers of thermoplastic materials together to form a sealing effect to protect the product from the influence of the external environment and extend the shelf life of the product. The basic principle of heat sealing is to use heat to soften the plastic material, and then use pressure to make the two layers of material tightly bonded, and form a stable seal after cooling. This process usually involves thermoplastics such as polyethylene (PE), polypropylene (PP), polyester (PET), etc. Application areas include the food industry, pharmaceutical industry, cosmetics industry and other industries. It is often used in food packaging, such as snack bags, beverage boxes, frozen food bags, etc. to maintain the freshness and hygiene of food, and for pharmaceutical packaging, such as blister packaging, medicine bottle caps, etc., to ensure the safety and effectiveness of drugs. And for cosmetics bottle caps, packaging bags, etc., to protect products from contamination. And for packaging in fields such as electronic products, stationery, toys, etc. Traditional heat sealing machines are generally set up in a horizontal plane and can only heat seal one sample at a time, which limits the work efficiency and is difficult to improve. In addition, heat seals generally use a single heating plate. Once air leakage occurs along the entire length of the heat seal, the entire sealing structure will fail, and the heat seal quality and seal integrity will be difficult to control. In order to effectively extend the shelf life of products and improve product quality, vacuum heat sealing technology is introduced in packaging heat sealing technology. By removing the air in the package, the shelf life of the product is extended, oxidation, moisture and other problems are prevented, while maintaining the freshness and quality of the product. Before heat sealing, the heat sealing equipment is evacuated to achieve vacuum heat sealing, but traditional vacuum heat sealing can only heat seal one sample at a time, and the work efficiency is low. Summary of the invention

[0003] Technical problem to be solved by the invention

[0004] In view of the technical problems of low working efficiency, difficult to control heat sealing quality and sealing integrity of existing packaging heat sealing equipment, the present invention provides a multi-seal vacuum multi-layer linkage heat sealing device, which combines vacuum heat sealing technology and multi-layer linkage heat sealing technology to improve both heat sealing efficiency and heat sealing quality during vacuum heat sealing.

[0005] Technical Solution

[0006] To solve the above problems, the technical solution provided by the present invention is:

[0007] The multi-strip vacuum multi-layer linkage heat sealing device comprises a frame; a box-shaped cavity, the cavity is provided with an opening, the opening is provided with a slide rail, and a packaging mechanism is provided in the cavity; a sealing door mechanism is a sliding translation connection structure with the opening, the sealing door mechanism comprises a door plate, and a sealing structure is provided between the door plate and the opening; the packaging mechanism comprises a packaging layer of a multi-layer drawer structure arranged in parallel, the packaging layer comprises an upper clamping plate assembly and a lower clamping plate assembly, and the packaging mechanism also comprises an upper execution vertical plate and a lower execution vertical plate that are transmission-connected to each packaging layer on the side, and the upper execution vertical plate is fixed The upper clamping plate assembly is connected to each packaging layer, and the lower clamping plate assembly of each packaging layer is fixedly connected to the lower execution vertical plate. The ends of the upper execution vertical plate and the lower execution vertical plate are provided with transmission diamonds, and the middle part of the transmission diamond is provided with a fixed hinge point. The two ends of the transmission diamond are respectively connected to the upper execution vertical plate and the lower execution vertical plate through a crank wheel and drive the upper execution vertical plate and the lower execution vertical plate to move in opposite directions; the transmission diamond, the fixed hinge point in the middle of the transmission diamond is proportional to the distance between the rotating connection points at both ends; the lower clamping plate assembly includes a plurality of heating plates arranged in parallel.

[0008] This solution combines vacuum heat sealing technology and multi-layer linkage heat sealing technology, and can complete the vacuum extraction and heat sealing of multiple packaging layers in a short time through the upper and lower execution plates and the overall packaging mechanism, greatly improving work efficiency. Traditional single-layer heat sealing machines can only process one package at a time, while this device can process multiple packages at the same time, significantly improving production speed.

[0009] Through the multi-layer parallel drawer packaging layer design, each packaging layer is equipped with a precisely controlled upper clamping plate assembly and a lower clamping plate assembly to ensure that each packaging bag can be evenly heated and firmly sealed. In particular, the multiple heating plates in the lower clamping plate assembly can provide a more uniform heat distribution, avoiding the problem of local overheating or uneven cooling. In the event that a single heating plate inevitably fails to heat some positions, other heating plates can be heat-sealed to remedy the position where heating is not in place. In theory, increasing the number of heating plates can reduce the probability of all heating plates failing to heat in the same position, further improving the quality of heat sealing.

[0010] The device adopts a unique transmission diamond design, which realizes the opposite movement of the upper and lower actuator plates through the crank wheel, ensuring the close contact between the upper and lower clamping plate assemblies, thereby improving the reliability of the seal. In addition, the sealing structure between the sealing door mechanism and the cavity opening is also carefully designed to ensure that there will be no leakage during the entire vacuum extraction process. The fixed hinge point in the middle of the transmission diamond is set in proportion to the distance between the rotating connection points at both ends. This is because the position of the sample to be heat-sealed between the upper clamping plate assembly and the lower clamping plate assembly is not exactly in the middle, and the height of the heat seal of different samples (products) is different. In addition, based on the principle of saving space in the cavity, the drawer plate carrying the sample is set between the upper clamping plate assembly and the lower clamping plate assembly, so that the lower clamping plate assembly and the drawer plate are almost located at the same horizontal plane. If the lower clamping plate assembly exceeds the drawer plate too much at the bottom, the heat seal will be interfered by the drawer plate if it is too low, causing the heat seal to bend downward, and the heat seal will not be horizontal, and the heat sealing effect will be greatly reduced; the upper clamping plate assembly and the lower clamping plate assembly will close and move, and if the lower clamping plate assembly exceeds the drawer plate too much at the top, the heat seal will bend upward, or the drawer plate will occupy too much space in order to make room for the movement of the lower clamping plate assembly, so the number of packaging layers in the cavity will be reduced, affecting the heat sealing efficiency. On the other hand, the smaller the volume of the packaging mechanism, the smaller the cavity will be, the faster the vacuuming speed of the cavity will be, and the heat sealing efficiency will be improved in disguise.

[0011] Due to the use of slide rails and translation connection structures, the sealing door mechanism can be easily opened and closed, making it convenient for operators to place or remove packages. At the same time, the design of multi-layer packaging layers allows for repair or replacement of a single packaging layer when a problem occurs, without affecting the normal operation of other layers, thus reducing maintenance costs.

[0012] Optionally, a groove and convex strip matching structure is provided between the door panel and the opening, and a rubber strip is provided at the edge of the door panel.

[0013] By setting matching grooves and ridges between the door panel and the opening, a tight physical barrier can be formed when the door panel is closed, effectively preventing outside air from entering the cavity. This mechanical sealing method is more reliable than simple plane contact and can ensure the stability of the vacuum environment. The rubber strips on the edge of the door panel will be compressed when the door panel is closed, further filling the tiny gaps between the grooves and ridges, providing additional sealing effect. The rubber material has good elasticity and weather resistance, and can maintain good sealing performance after multiple openings and closings.

[0014] Optionally, the sealing door mechanism includes a pressure plate, a fixed plate and a door panel which are arranged in parallel in sequence, the fixed plate being slidably connected to the frame via a column, the pressure plate and the door panel being telescopically connected via a support rod assembly that passes through the fixed plate, the pressure plate being fixed to the fixed plate, a telescopic cylinder being provided on the pressure plate and an output end of the telescopic cylinder being connected to the door panel.

[0015] The telescopic cylinder drives the door panel to open and close, which can achieve precise control. The telescopic cylinder provides stable and controllable power, ensuring that the same sealing pressure can be achieved every time the door panel is closed, improving the consistency and reliability of the seal. The pressure plate and the door panel are telescopically connected by the support rod assembly, which can apply sealing pressure to ensure a good sealing effect in various situations. The fixed plate plays the role of translating the opening of the cavity, the pressure plate is used to apply sealing pressure, and the door panel is the component that actually fits the opening to seal.

[0016] Optionally, a drawer plate is provided between the upper clamping plate assembly and the lower clamping plate assembly, a pulley and a guide rail are provided below the drawer plate, and the drawer plate can be drawn out horizontally.

[0017] The drawer can be pulled out horizontally, allowing operators to easily put in or take out items to be packaged without having to put their hands into a narrow space to operate, which improves the safety and convenience of operation. The pulley and guide rail design under the drawer makes the movement of the drawer smoother, reduces friction, ensures the stability of the drawer during the process of pulling out and pushing back, and avoids jamming or shaking.

[0018] Optionally, a clamping plate is provided above the drawer plate, and the clamping plate is connected to a clamping cylinder.

[0019] The clamping cylinder provides a stable driving force to ensure that the clamping plate can firmly clamp the items to be packaged, preventing the items from shifting or deforming during the heat sealing process, and improving the stability and reliability of the package. The clamping plate can be evenly distributed on the items on the drawer through the action of the clamping cylinder, ensuring that each part is subjected to consistent pressure, avoiding poor sealing caused by uneven local pressure.

[0020] Optionally, the upper clamping plate assembly includes a silicone foam plate, the silicone foam plate is pressed together with the heating plate, and a spring is provided inside the silicone foam plate.

[0021] The silicone foam sheet has good thermal insulation and flexibility, and can evenly transfer heat to ensure that the heat of the heating plate is evenly distributed to the packaging material, avoiding local overheating or uneven cooling. The silicone foam sheet is pressed together with the heating plate to ensure close contact between the two, improve the efficiency of heat conduction, and make the heating process more uniform and efficient. The springs in the silicone foam sheet provide a buffering effect, which can absorb part of the pressure during the compression process to prevent damage or deformation of the packaging material due to excessive compression. This is particularly suitable for some sensitive or fragile items to ensure that they are not damaged during the packaging process. The flexibility of the silicone foam sheet and the increased elasticity of the spring ensure that the upper clamping plate assembly can fit the packaging material tightly, improving the reliability and integrity of the seal. The flexibility of the silicone foam sheet combined with the buffering effect of the spring enables the upper clamping plate assembly to better adapt to packaging materials of different thicknesses and shapes when compressed, providing a more uniform pressure distribution.

[0022] Optionally, the distances between the fixed hinge point in the middle of the transmission diamond and the rotating connection points at both ends are not proportional, and the ratio of the distance from the rotating connection point of the lower execution vertical plate to the fixed hinge point to the distance from the rotating connection point of the upper execution vertical plate to the fixed hinge point is in the range of 1:2-3:1.

[0023] The distance between the fixed hinge point in the middle of the transmission diamond and the rotating connection points at both ends is unequally proportional. This design allows the upper and lower executive vertical plates to achieve nonlinear motion trajectories during movement, better adapting to the needs of different packaging layers. The ratio of the distance from the rotating connection point of the lower executive vertical plate to the fixed hinge point and the distance from the rotating connection point of the upper executive vertical plate to the fixed hinge point ranges from 1:2 to 3:1. The ratio change within this range can accurately control the movement speed and stroke of the upper and lower clamping plate assemblies, ensuring that the heat sealing position is the same or close to the original position of the sample, avoiding interference and expanding space, and each packaging layer can obtain the best heat sealing effect.

[0024] Optionally, the lower clamping plate assembly includes a lower heating block, and the lower heating block is provided with a card slot arranged along the length direction, and the card slot is engaged with the heating plate.

[0025] The slots on the lower heating block are arranged along the length direction, ensuring that the heating plate can be accurately inserted and fixed in the predetermined position, avoiding displacement or loosening of the heating plate during use. The matching design of the slots and the heating plate enables the heating plate to be firmly fixed on the lower heating block, ensuring that the heating plate remains stable during operation and improving the uniformity and consistency of heating.

[0026] Optionally, two ends of the heating plate are connected to power posts and powered.

[0027] The two ends of the heating plate are directly energized through the power supply column, which can achieve fast and uniform heating. This method enables the heating plate to quickly reach the set temperature and the temperature control is more precise.

[0028] Optionally, the packaging mechanism includes a support assembly, the upper clamping plate assembly includes an upper adapter plate, the upper adapter plate is slidably connected to the support assembly via a track, the lower clamping plate assembly includes a lower adapter plate, the lower adapter plate is slidably connected to the support assembly via a track, the upper adapter plate and the lower adapter plate are located on the side of the packaging mechanism and are used to guide the clamping plate assembly.

[0029] The upper adapter plate and the lower adapter plate are connected to the support assembly through rail sliding, ensuring that the upper and lower clamping plate assemblies always maintain linear motion during movement, avoiding deviation and shaking, and improving the accuracy and stability of movement. The upper and lower adapter plates are located on the side of the packaging mechanism, providing additional lateral guidance to ensure that the clamping plate assembly always remains vertical and flat during the compression and release process, avoiding tilting and deformation.

[0030] Beneficial Effects

[0031] Compared with the prior art, the technical solution provided by the present invention has the following beneficial effects:

[0032] The technical solution provided by the present invention combines vacuum heat sealing technology and multi-layer linkage heat sealing technology, and can complete the vacuum extraction and heat sealing of multiple packaging layers simultaneously through the upper and lower execution plates and the overall packaging mechanism in a short time, greatly improving the work efficiency. The traditional single-layer heat sealing machine can only process one package at a time, while the device can process multiple packages at the same time, significantly improving the production speed.

[0033] Through the multi-layer parallel drawer packaging layer design, each packaging layer is equipped with a precisely controlled upper clamping plate assembly and a lower clamping plate assembly to ensure that each packaging bag can be evenly heated and firmly sealed. In particular, the multiple heating plates in the lower clamping plate assembly can provide a more uniform heat distribution, avoiding the problem of local overheating or uneven cooling. In the event that a single heating plate inevitably fails to heat some positions, other heating plates can be heat-sealed to remedy the position where heating is not in place. In theory, increasing the number of heating plates can reduce the probability of all heating plates failing to heat in the same position, further improving the quality of heat sealing.

[0034] The device adopts a unique transmission diamond design, which realizes the opposite movement of the upper and lower actuator plates through the crank wheel, ensuring the close contact between the upper and lower clamping plate assemblies, thereby improving the reliability of the seal. In addition, the sealing structure between the sealing door mechanism and the cavity opening is also carefully designed to ensure that there will be no leakage during the entire vacuum extraction process. The fixed hinge point in the middle of the transmission diamond is set in proportion to the distance between the rotating connection points at both ends. This is because the position of the sample to be heat-sealed between the upper clamping plate assembly and the lower clamping plate assembly is not exactly in the middle, and the height of the heat seal of different samples (products) is different. In addition, based on the principle of saving space in the cavity, the drawer plate carrying the sample is set between the upper clamping plate assembly and the lower clamping plate assembly, so that the lower clamping plate assembly and the drawer plate are almost located at the same horizontal plane. If the lower clamping plate assembly exceeds the drawer plate too much at the bottom, the heat seal will be interfered by the drawer plate if it is too low, causing the heat seal to bend downward, and the heat seal will not be horizontal, and the heat sealing effect will be greatly reduced; the upper clamping plate assembly and the lower clamping plate assembly will close and move, and if the lower clamping plate assembly exceeds the drawer plate too much at the top, the heat seal will bend upward, or the drawer plate will occupy too much space in order to make room for the movement of the lower clamping plate assembly, so the number of packaging layers in the cavity will be reduced, affecting the heat sealing efficiency. On the other hand, the smaller the volume of the packaging mechanism, the smaller the cavity will be, the faster the vacuuming speed of the cavity will be, and the heat sealing efficiency will be improved in disguise. This device not only solves the problems of low working efficiency and difficult control of heat sealing quality and sealing integrity of traditional heat sealing equipment, but also realizes efficient and high-quality vacuum heat sealing through technological innovation, and has high practical value and market prospects. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] Figure 1 A schematic structural diagram of a multi-strip vacuum multi-layer linkage heat sealing device proposed in an embodiment of the present invention;

[0036] Figure 2 A schematic diagram of the back side of a multi-seal vacuum multi-layer linkage heat sealing device according to an embodiment of the present invention;

[0037] Figure 3 A side schematic diagram of a multi-seal vacuum multi-layer linkage heat sealing device proposed in an embodiment of the present invention;

[0038] Figure 4 A schematic structural diagram of a sealing door mechanism of a multi-seal vacuum multi-layer linkage heat sealing device according to an embodiment of the present invention;

[0039] Figure 5 A cross-sectional view of a sealing door mechanism of a multi-seal vacuum multi-layer linkage heat sealing device proposed in an embodiment of the present invention;

[0040] Figure 6A schematic structural diagram of a packaging mechanism of a multi-seal vacuum multi-layer linkage heat-sealing device according to an embodiment of the present invention;

[0041] Figure 7 A cross-sectional schematic diagram of a packaging mechanism of a multi-seal vacuum multi-layer linkage heat sealing device proposed in an embodiment of the present invention;

[0042] Figure 8 A partial cross-sectional view of a packaging mechanism of a multi-seal vacuum multi-layer linkage heat-sealing device proposed in an embodiment of the present invention;

[0043] Fig. 9 A partial schematic diagram of a packaging mechanism of a multi-seal vacuum multi-layer linkage heat sealing device proposed in an embodiment of the present invention;

[0044] Fig.10 A schematic diagram of the actuator cylinder and other components of the multi-seal vacuum multi-layer linkage heat sealing device proposed in an embodiment of the present invention;

[0045] Fig.11 A partial schematic diagram of a transmission diamond-shaped member of a multi-seal vacuum multi-layer linkage heat sealing device according to an embodiment of the present invention;

[0046] Fig.12 An enlarged view of a transmission diamond-shaped member of a multi-seal vacuum multi-layer linkage heat sealing device according to an embodiment of the present invention;

[0047] Fig.13 A partial schematic diagram of a lower heating block of a multi-seal vacuum multi-layer linkage heat sealing device according to an embodiment of the present invention;

[0048] 1. Frame; 2. Cavity; 201. Molecular pump interface; 202. Pre-pumping valve port; 3. Sealing door mechanism; 301. Fixed plate; 302. Pressing plate; 303. Telescopic cylinder; 304. Support rod assembly; 305. Door plate; 306. Pressing sheet; 4. Packing mechanism; 401. Support assembly; 402. Upper clamping plate assembly; 403. Lower clamping plate assembly; 404. Track; 405. Upper execution plate; 406. Lower execution plate; 407. Transmission diamond; 408. Upper crank wheel ; 409, lower crank wheel; 4010, drawer plate; 4011, pull handle; 4012, silicone foam board; 4013, lower heating block; 4014, clamping plate; 4015, heating plate; 4016, upper adapter plate; 4017, lower adapter plate; 5, column; 6, sliding seat; 7, slide rail; 8, slider; 9, sample; 10, execution cylinder; 1001, execution connecting rod; 11, clamping cylinder; 1101, clamping connecting rod; 1102, clamping slide; 12, cylinder fixing frame. DETAILED DESCRIPTION

[0049] In order to further understand the content of the present invention, the present invention is described in detail in conjunction with the accompanying drawings and embodiments.

[0050] Example 1

[0051] Combined with Figure 1 The multi-strip vacuum multi-layer linkage heat sealing device comprises a frame 1, which is rectangular. The cavity 2 is box-shaped, and is provided with an opening, and the opening is provided with a slide rail 7. A packaging mechanism 4 is provided in the cavity 2. The cavity 2 is located below the frame 1, and the packaging mechanism 4 is arranged in the cavity 2 according to a drawer structure. The drawer plate 4010 in the packaging mechanism 4 can be drawn out like a drawer. A reinforcing rib is provided outside the cavity 2.

[0052] The sealing door mechanism 3 is connected to the opening in a sliding and translational structure, and includes a door plate 305, and a sealing structure is provided between the door plate 305 and the opening. The sealing door mechanism 3 is located above the frame 1 and parallel to the opening. After the sealing door mechanism 3 moves downward, it can cover the opening to form a sealed cavity 2.

[0053] Combined with Figure 2 The back of the rack 1 is provided with a molecular pump interface 201 and a pre-pumping valve port 202. The molecular pump interface 201 is connected to the molecular pump. The working principle of the molecular pump is based on molecular dynamics. It uses high-speed rotating blades or magnetic levitation technology to enable gas molecules to obtain sufficient kinetic energy and thus be discharged from the vacuum chamber 2. The pre-pumping valve port 202 is connected to the pre-pumping valve. The pre-pumping valve is a valve commonly used in vacuum systems. It is mainly used to quickly reduce the pressure of the system at the initial stage of vacuum pump startup so that the main vacuum pump can reach its working range faster. The pre-pumping valve is usually used in conjunction with a fore-stage pump (such as a rotary vane pump, a dry pump, etc.) and a main vacuum pump (such as a turbomolecular pump, a diffusion pump, etc.) to improve the overall efficiency and stability of the system.

[0054] Combined with Figure 3-5 The sealing door mechanism 3 includes a pressing plate 302, a fixed plate 301 and a door panel 305 which are arranged in parallel in sequence. The fixed plate 301 is slidably connected to the frame 1 through the column 5. The pressing plate 302 and the door panel 305 are telescopically connected through the supporting rod assembly 304 passing through the fixed plate 301. The pressing plate 302 is fixed to the fixed plate 301. A telescopic cylinder 303 is provided on the pressing plate 302 and the output end of the telescopic cylinder 303 is connected to the door panel 305. A flange linear bearing is fixed to the fixed plate 301, and the flange linear bearing is slidably connected to the column 5 to provide a guiding function. The flange linear bearing and the column 5 are symmetrical structures to provide balanced guidance. A slide rail 7 and a slider 8 are also provided at the opening between the fixed plate 301 and the cavity 2. A sensor is provided in the slider 8 to detect the position of the sealing door mechanism 3 and whether the cavity 2 is sealed. The top of the sealing door mechanism 3 as a whole is connected to a driving mechanism to provide power. A groove and convex strip matching structure is provided between the door panel 305 and the opening, and a rubber strip is provided at the edge of the door panel 305 .

[0055] Combined with Figure 6The packaging mechanism 4 includes a plurality of packaging layers of a drawer structure arranged in parallel, the packaging layer includes an upper clamping plate assembly 402 and a lower clamping plate assembly 403, and the packaging mechanism 4 also includes an upper execution plate 405 and a lower execution plate 406 that are connected to each packaging layer on the side. The upper execution plate 405 is fixedly connected to the upper clamping plate assembly 402 of each packaging layer, and the lower execution plate 406 is fixedly connected to the lower clamping plate assembly 403 of each packaging layer. The ends of the upper execution plate 405 and the lower execution plate 406 are provided with a transmission diamond 407, and the middle of the transmission diamond 407 is provided with a fixed hinge point. The two ends of the transmission diamond 407 are respectively connected to the upper execution plate 405 and the lower execution plate 406 through a crank wheel and drive the upper execution plate 405 and the lower execution plate 406 to move in opposite directions to form a lever structure. The support assembly 401 of the packaging mechanism 4 is a multi-layer structure similar to a bookshelf, and the packaging layer is located at each layer. In this embodiment, two support assemblies 401 are arranged side by side and connected together. A safety bar is provided in front of the side of the support component 401 to block the drawer plate 4010 of the packaging layer. The safety bar is rotatably arranged and has induction adapter blocks connected at both ends. Heat sealing will be started only when the safety bar is in place, that is, all the drawers 4010 are in place, thereby improving safety.

[0056] Combined with Figure 7-10 A draw plate 4010 is provided between the upper clamping plate assembly 402 and the lower clamping plate assembly 403. A pulley and a guide rail are provided below the draw plate 4010. The draw plate 4010 can be drawn out horizontally, and the sample 9 is located on the draw plate 4010. A pressing plate 4014 is provided above the draw plate 4010, and the pressing plate 4014 is connected to a pressing cylinder 11. A pull handle 4011 is extended and fixedly connected to the draw plate 4010. A silicone foaming plate 4012 and a lower heating block 4013 are provided on the right side of the draw plate 4010. The upper and lower positions of the two correspond to each other and can be pressed and heat-sealed. A heating plate 4015 is provided on the lower heating block 4013. The packaging mechanism 4 includes a support assembly 401, an upper clamping plate assembly 402 includes an upper adapter plate 4016, and the upper adapter plate 4016 is slidably connected to the support assembly 401 through a track 404. The lower clamping plate assembly 403 includes a lower adapter plate 4017, and the lower adapter plate 4017 is slidably connected to the support assembly 401 through the track 404. The upper adapter plate 4016 and the lower adapter plate 4017 are located on the side of the packaging mechanism 4 and are used to guide the clamping plate assembly. The two ends of the silicone foaming plate 4012 are fixed to the upper adapter plate 4016, and the two ends of the lower heating block 4013 are fixed to the lower adapter plate 4017.

[0057] Combined with Fig.10The top of the upper execution stand 405 is connected to the execution cylinder 10 through the execution connecting rod 1001, and each layer of the pressing plate 4014 is fixed to the side pressing slide 1102, and the top of the pressing slide 1102 is connected to the pressing cylinder 11 through the pressing connecting rod 1101, and the execution cylinder 10 and the pressing cylinder 11 are both fixed to the cylinder fixing frame 12. This part of the system is a symmetrical structure and is set on both sides of the packaging mechanism 4.

[0058] Combined with Figure 11-12 The middle of the transmission diamond 407 is provided with a fixed hinge point, and the two ends of the transmission diamond 407 are respectively connected to the upper execution plate 405 and the lower execution plate 406 through the crank wheel and drive the upper execution plate 405 and the lower execution plate 406 to move in opposite directions, forming a lever structure. The distance between the fixed hinge point in the middle and the rotation connection points at the two ends is proportional.

[0059] The distances between the fixed hinge point in the middle of the transmission diamond 407 and the rotation connection points at both ends are not proportional. The ratio of the distance from the rotation connection point of the lower execution vertical plate 406 to the fixed hinge point to the distance from the rotation connection point of the upper execution vertical plate 405 to the fixed hinge point is in the range of 1:2-3:1. In this embodiment, the ratio of the distance from the rotation connection point of the lower execution vertical plate 406 to the fixed hinge point to the distance from the rotation connection point of the upper execution vertical plate 405 to the fixed hinge point can be 1:2, 2:1 or 3:1. Fig.12 As shown, the ratio is 2:1.

[0060] Combined with Fig.13 The lower clamping plate assembly 403 includes a lower heating block 4013, and the lower heating block 4013 is provided with a slot arranged along the length direction, and the slot is engaged with the heating plate 4015. The lower clamping plate assembly 403 includes a plurality of heating plates 4015 arranged in parallel. Both ends of the heating plate 4015 are connected to power-on posts and powered. The power-on posts are connected to the controller. In this embodiment, two heating plates 4015 are provided.

[0061] Example 2

[0062] Combined with Figure 1-4 Compared with the technical solution of Example 1, the multi-seal vacuum multi-layer linkage heat sealing device of this embodiment can be improved as follows:

[0063] The two ends of the transmission diamond 407 can be changed into telescopic rods with adjustable lengths, so that the distance between the fixed hinge point in the middle of the transmission diamond 407 and the rotating connection points at both ends can be adjusted to adapt to the height of the heat seal of the sample 9 and improve the applicability of the equipment. At the same time, the bottom ends of the upper execution plate 405 and the lower execution plate 406 are changed into horizontally rotating hinge seats, which are limited in the length direction of the upper execution plate 405 and the lower execution plate 406 and cannot move, so that the upper execution plate 405 and the lower execution plate 406 are still only controlled by the upper crank wheel 408 and the lower crank wheel 409 to move in the length direction, but the ratio of the distance can be adjusted.

[0064] The present invention and its embodiments are described schematically above, and the description is not restrictive. The drawings show only one embodiment of the present invention, and the actual structure is not limited thereto. Therefore, if a person skilled in the art is inspired by it and designs a structural method and an embodiment similar to the technical solution without creativity without departing from the purpose of the invention, they shall all fall within the protection scope of the present invention.

Claims

1. Multi-strip vacuum multi-layer linkage heat sealing device, characterized in that: include frame; The cavity is box-shaped, the cavity is provided with an opening, the opening is provided with a slide rail, and the cavity is provided with a packaging mechanism; A sealing door mechanism is connected to the opening in a sliding and translational structure, wherein the sealing door mechanism comprises a door plate, and a sealing structure is provided between the door plate and the opening; The packaging mechanism comprises packaging layers of a drawer structure arranged in parallel in multiple layers, the packaging layers comprising an upper clamping plate assembly and a lower clamping plate assembly, the packaging mechanism also comprises an upper execution vertical plate and a lower execution vertical plate which are transmission-connected to each packaging layer on the side, the upper execution vertical plate is fixedly connected to the upper clamping plate assembly of each packaging layer, the lower execution vertical plate is fixedly connected to the lower execution vertical plate, transmission diamonds are arranged at the ends of the upper execution vertical plate and the lower execution vertical plate, a fixed hinge point is arranged at the middle of the transmission diamonds, and the two ends of the transmission diamonds are rotationally connected to the upper execution vertical plate and the lower execution vertical plate respectively through a crank wheel and drive the upper execution vertical plate and the lower execution vertical plate to move in opposite directions; A transmission diamond, the distance between the fixed hinge point in the middle and the rotating connection points at both ends is proportional; The lower clamping plate assembly includes a plurality of heating plates arranged in parallel.

2. The multi-strip vacuum multi-layer linkage heat sealing device according to claim 1, characterized in that: A groove and convex strip matching structure is provided between the door panel and the opening, and a rubber pressure strip is provided at the edge of the door panel.

3. The multi-strip vacuum multi-layer linkage heat sealing device according to claim 2, characterized in that: The sealing door mechanism includes a pressure plate, a fixed plate and a door plate which are arranged in parallel in sequence. The fixed plate is slidably connected to the frame through a column. The pressure plate and the door plate are telescopically connected through a support rod assembly that passes through the fixed plate. The pressure plate is fixed to the fixed plate. A telescopic cylinder is provided on the pressure plate and the output end of the telescopic cylinder is connected to the door plate.

4. The multi-strip vacuum multi-layer linkage heat sealing device according to claim 1, characterized in that: A drawer plate is arranged between the upper clamping plate assembly and the lower clamping plate assembly, a pulley and a guide rail are arranged below the drawer plate, and the drawer plate can be drawn out horizontally.

5. The multi-strip vacuum multi-layer linkage heat sealing device according to claim 4, characterized in that: A pressing plate is provided above the pumping plate, and the pressing plate is connected with a pressing cylinder.

6. The multi-strip vacuum multi-layer linkage heat sealing device according to claim 1, characterized in that: The upper clamping plate assembly comprises a silicone foam plate, the silicone foam plate is pressed together with the heating plate, and a spring is arranged inside the silicone foam plate.

7. The multi-strip vacuum multi-layer linkage heat sealing device according to claim 1, characterized in that: The distances between the fixed hinge point in the middle of the transmission diamond are not proportional to the rotation connection points at both ends. The ratio of the distance from the rotation connection point of the lower execution vertical plate to the fixed hinge point to the distance from the rotation connection point of the upper execution vertical plate to the fixed hinge point is 1:2-3:

1.

8. The multi-strip vacuum multi-layer linkage heat sealing device according to claim 1, characterized in that: The lower clamping plate assembly comprises a lower heating block, and the lower heating block is provided with a clamping groove arranged along the length direction, and the clamping groove is engaged with the heating plate.

9. The multi-strip vacuum multi-layer linkage heat sealing device according to claim 8, characterized in that: Both ends of the heating plate are connected with power-on posts and are powered.

10. The multi-strip vacuum multi-layer linkage heat sealing device according to claim 1, characterized in that: The packaging mechanism includes a support assembly, the upper clamping plate assembly includes an upper adapter plate, and the upper adapter plate is slidably connected to the support assembly via a track. The lower clamping plate assembly includes a lower adapter plate, and the lower adapter plate is slidably connected to the support assembly via a track. The upper adapter plate and the lower adapter plate are located on the side of the packaging mechanism and are used to guide the clamping plate assembly.

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